—I'm sorry, but by then I {#blank#}1{#/blank#}(fly) to Beijing. How about five?

    No one knows {#blank#}1{#/blank#}(exact) how the earth began, as it happened so long ago. However, according to a widely {#blank#}2{#/blank#}(accept) theory, the universe began {#blank#}3{#/blank#}a “Big Bang” that threw matter in all {#blank#}4{#/blank#}(direction). For several billion years after the “Big Bang”, the earth was still just a cloud of dust.{#blank#}5{#/blank#} it was to become was {#blank#}6{#/blank#}(certain) until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so {#blank#}7{#/blank#}(violence) that it was not clear {#blank#}8{#/blank#}the shape would last or not. It exploded loudly with fire and rock. They were in time {#blank#}9{#/blank#}(produce) carbon dioxide, nitrogen, water vapour and other gases, which were to make the earth's atmosphere. What is even more important is that as the earth cooled down, water began to appear on {#blank#}10{#/blank#} surface.

    It used to be common to see US teenagers busy at fast-food restaurants cooking burgers and {#blank#}1{#/blank#} (clean) tables, especially during the summer vacation. {#blank#}2{#/blank#}, the scene is becoming less common.

    Instead of finding summer jobs, many US teenagers are spending {#blank#}3{#/blank#} (they) free time taking classes. According to The Atlantic, this change partly results {#blank#}4{#/blank#} the low teen earnings paying little toward the costs of college. For many students who are going to attend college, the money from summer jobs doesn't live up to their {#blank#}5{#/blank#} (expect) at all. Meanwhile, US teenagers' increasing interest in education {#blank#}6{#/blank#} (account) for this as well. They go to summer school to learn {#blank#}7{#/blank#} they might not have time for after they leave school, which {#blank#}8{#/blank#} (consider) as a wise choice.

    Despite this, a summer job is still believed to benefit teenagers. Early work experience is {#blank#}9{#/blank#} human activity that develops people's social skills. When kids are working, they gradually gain {#blank#}10{#/blank#} (practice) knowledge and understanding of the labor market.

    When you {#blank#}1{#/blank#}(hurt) deeply by someone, you may feel it very difficult {#blank#}2{#/blank#}(remove)your anger. But forgiving is possible and it can be {#blank#}3{#/blank#}great benefit to your health. Up to now, a research {#blank#}4{#/blank#} (show) that people who forgive have more energy, better appetite and better sleep. "People who forgive show {#blank#}5{#/blank#} (little) anger and more hopefulness," says Dr. Frederic Luskin, {#blank#}6{#/blank#} wrote the book Forgive for Good. "So it can help reduce the tiredness and allow people to feel more {#blank#}7{#/blank#} (energy)."

    So when someone hurts you, cool down first. Take a couple of breaths and think of something that gives you pleasure. Don't wait for an apology. "Many times the person who hurt you may escape {#blank#}8{#/blank#} (apologize)," says Dr. Luskin. "They may have wanted to hurt you or they just don't see things in same way."

    Next keep in mind that forgiveness does not necessarily mean accepting {#blank#}9{#/blank#} the person has done to you. Finally, try to see things from that person's opinions. To achieve it, just put {#blank#}10{#/blank#} (you) in that person's place.

    Once there lived a rich man{#blank#}1{#/blank#}wanted to do something for the people of his town.{#blank#}2{#/blank#} first he wanted to find out whether they deserved his help.

    In the centre of the main road into the town, he placed{#blank#}3{#/blank#}very large stone. Then he {#blank#}4{#/blank#}(hide) behind a tree and waited. Soon an old man came along with his cow.

    “Who put this stone in the centre of the road?” said the old man, but he did not try to remove the stone. Instead, with some difficulty he passed around the stone and continued on his way{#blank#}5{#/blank#}man came along and did the same thing; then another came, and another. All of them complained about the stone but not tried to remove {#blank#}6{#/blank#}. Late in the afternoon a young man came along. He saw the stone,{#blank#}7{#/blank#}(say) to himself: “The night{#blank#}8{#/blank#}(be) very dark. Some neighbors will come along later in the dark and will fall against the stone.”

    Then he began to move the stone. He pushed and pulled with all his {#blank#}9{#/blank#}(strong) to move it. How great was his surprise at last!{#blank#}10{#/blank#} the stone, he found a bag of money.